513541387 has 2 divisors, whose sum is σ = 513541388. Its totient is φ = 513541386.

The previous prime is 513541339. The next prime is 513541397. The reversal of 513541387 is 783145315.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513541387 is a prime.

It is not a weakly prime, because it can be changed into another prime (513541307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256770693 + 256770694.

It is an arithmetic number, because the mean of its divisors is an integer number (256770694).

Almost surely, 2^513541387 is an apocalyptic number.

513541387 is a deficient number, since it is larger than the sum of its proper divisors (1).

513541387 is an equidigital number, since it uses as much as digits as its factorization.

513541387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50400, while the sum is 37.

The square root of 513541387 is about 22661.4515642754. The cubic root of 513541387 is about 800.8020014526.

The spelling of 513541387 in words is "five hundred thirteen million, five hundred forty-one thousand, three hundred eighty-seven".